吉林大学学报(工学版) ›› 2011, Vol. 41 ›› Issue (增刊1): 150-154.

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System of arm potential energy recovery in hybrid hydraulic excavators

ZHAO Ding-xuan1, CHEN Ming-dong1,2, DAI Qun-liang3, ZHANG Er-ping3, XU Chun-bo1   

  1. 1. College of Mechanical Science and Engineering, Jilin University, Changchun 130022, China;
    2. College of Architecture Engineering, Qingdao Agricultural University, Qingdao 266109, China;
    3. Guangxi Liugong Machinery Co Ltd, Liuzhou 545007, China
  • Received:2010-11-12 Online:2011-09-01 Published:2011-09-01

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Abstract:

Facing the disadvantage of high cost and low power density for electric hybrid hydraulic excavators,an arm potential energy recovery in hydraulic hybrid excavators,which is made up of cylinder,reversing valve,check valve and accumulator,was put forward based on the analysis of unique working condition in hydraulic excavators,and its mathematical models were built.Energy saving rate of the system was simulated on the basis of measured parameter,Compared with ordinary hydraulic excavators energy consumption,the system has high energy saving rate,and the energy saving rate is up to 14.8% when meet the working requirment.

Key words: power machinery and engineering, hydraulic excavators, hydraulic hybrid, accumulator, arm potential energy, energy saving

CLC Number: 

  • TH137


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